forked from mirrors/nixpkgs
42 lines
1.1 KiB
Diff
42 lines
1.1 KiB
Diff
Running command 'diff -urN old-iconv new-iconv'
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Fri May 29 00:42:30 CEST 2015 Robert Helgesson <robert@rycee.net>
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* Add Functor and Applicative instances for IConv
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This makes iconv successfully build under GHC 7.10.
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diff -urN old-iconv/Codec/Text/IConv/Internal.hs new-iconv/Codec/Text/IConv/Internal.hs
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--- old-iconv/Codec/Text/IConv/Internal.hs 2015-05-31 11:26:06.410968449 +0200
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+++ new-iconv/Codec/Text/IConv/Internal.hs 2015-05-31 11:26:06.410968449 +0200
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@@ -49,6 +49,7 @@
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import System.IO.Unsafe (unsafeInterleaveIO, unsafePerformIO)
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import System.IO (hPutStrLn, stderr)
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import Control.Exception (assert)
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+import Control.Monad (ap, liftM)
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import Prelude hiding (length)
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@@ -192,8 +193,8 @@
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-}
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-----------------------------
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--- IConv monad
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+----------------------------------------
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+-- IConv functor, applicative, and monad
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--
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newtype IConv a = I {
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@@ -202,6 +203,13 @@
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-> IO (Buffers, a)
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}
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+instance Functor IConv where
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+ fmap = liftM
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+
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+instance Applicative IConv where
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+ pure = return
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+ (<*>) = ap
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+
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instance Monad IConv where
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(>>=) = bindI
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-- m >>= f = (m `bindI` \a -> consistencyCheck `thenI` returnI a) `bindI` f
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